When creating a factory order quotation you are in effect, 'building' the vehicle before the details are pulled into the order. You can read more about creating an order here. So adding a factory option to the vehicle will add it to the order too.
To add a factory option to a vehicle you first need to view the vehicle record in edit mode. To do this click on the 'Edit this vehicle' button within the Order Form.
The vehicle record will now open in edit view. Within this view, navigate to the 'Options' tab. Click the 'Add New' button to add another factory option.
A drop-down menu will allow you to select another factory option for the vehicle.
Once you have added a factory option, click on the 'Save' button. You will now return to the order. You can review the factory options within the 'FACTORY OPTIONS' section. Notice that the prices (including P11D) have adjusted within the Order Form automatically.